Wire-connector.



0. BAllVlA-RIVA.

wml-I CONNECTOR. APPLICATION FILI- QD NOV. 4| 1915.

1,263,565. Patented Nov. 7, 1916.

UNITED sTATEs PATENT OFFICE..

onEs'rE EMMA-Erve, or MILAN, ITALY. 7

y'To all whom t may concern."

Be it known that I, ORESTE BAJMA-RIVA, subject of the King of Italy,l residing at l() Via Salaino, Milan, Italy, have invented certain*y new and useful Improvements in Wire-Connectors,of which the following is 'a specification.

This invention matical device for the mechanical and electrical joining of wires and the like.

In the accompanying drawing: Figure 1 is a longitudinal section and plan view of a coupling sleeve. Fig. 2 shows a coupling cone in section and in plan view.` Fig. 3 is a detail view of a ring. Fig. Llis a sec-l tion and. plan view of a diaphragm. Fig. 5 isa section through a means for limiting the backward movement of the coupling cone, and Fig. -6 shows lpartly in section a coupling sleeve in working position. Figs. 7 and 8 show a modified construction.

Referring irst to Figs. 1-6 of the drawing, the improved device comprises a conical recess ahaving a circular or other suitable cross section, into which al hollow truncated cone b is located. This cone b is longitudinally cut into two, three or many portions, which are held fast together by means of an elastic ring c of metal. The ring c is opened at a point of its circumference as shown in Fig. 3 being thus enabled to exert a clamping action upon the sections of thev member b, so that a hole having about the shape of a regular truncated cone is obtained. The ring c is forced into the groove d provided in the member b' (Fig. 2). A

diaphragm d (Fig. 4l, or other suitable means e (Fig. 5), serves to limit the backl ward movement of the truncated cone' b,

which is capable of expansion under the action of a wire led through it. The pressure. of the elastic ring c causes the sectionsof the memberv b to closely bear against the wire' and to follow the movements of the same. -By forcing the diaphragm d by suitf able means against the greater lbase of the cone b, this is locked in the conical recess a and prevented from any backward movement. Should a mechanical strain, acting in the direction ofthe arrow as indicated in Fig. 6, have the tendency to draw the Speciieaton of Letters Patent.

has forits object an autolWire out 0f the device, the reaction engen; dered by the recess a against which the member b bears, will cause the forcing of the sections b toward the center of the wire, producing in this way a friction by which the wire is'held into 'the device and prevented from any sliding movement.

tion of the device andmore specially the construction of the socket including the conical recess for the sections which are Patented Nov. 7, 1916'. Application filed November .4, 1915. Serial No. 59,658. i i

Figs. 7 and'8 show a preferred construcintended to grasp the ends of the wire to be joined. According to this construction, a cylindrical tube A-A 'is cut in the desired length and provided' with two symmetrical lholes c c, vone of the ends',(a) of ,the said tube being then compressedjso as to assumethe shape of a truncated cone, and one of the sections b, provided with the elastic ring c, placed in position.,l Afterg y this, a pin d, lthe` ends of which are riveted,

is driven through thefholes e-e and the second section b provided with .the elastic ring, placed in position. Therother end (1^) of the tube A-A is` then sharpened in the same. way as the end (a) (see dotted lines on Fig. 7). Thus made, theends of the wire to be joined can bel-led into Ithe vdevice and the joining takes `place automatically owingv to the tension ofthe wire.

Having \now particularly described theV Lnature of my said invention and in 'what manner the same is to be performed, whatl I claim is: y l

A connector for wires and the like, comprising in combination, a double cone sleeve, multi-partite 'truncated' cones adapted to be introduced into said sleeve from opposite ends and"adapted'to receive the ends of a wire, slitted' rings adapted to clamp the parts of said cones on .said wires and frictionally lengaging the inner walls of said sleeve,land means for limiting the backward movement of said truncated cones, substantially as described.

In'testimony whereof I have affixed my signature in presence of two witnesses.

ORESTE BAJMA-RIVA. Witnesses: l

ALBERTE PERZ, ILo C. FUNK. 

